Monthly Archives: September 2010

Rcpp 0.8.6

September 10, 2010
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After a somewhat longer than usual break, we now have a new release of Rcpp on CRAN and in Debian. This release adds quite few things. The main one may be the addition of density, distribution, quantile and random number functions for a rather large n...

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Rcpp 0.8.6

September 10, 2010
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After a somewhat longer than usual break, we now have a new release of Rcpp on CRAN and in Debian. This release adds quite few things. The main one may be the addition of density, distribution, quantile and random number functions for a rather large...

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Revolution R Enterprise, some thoughts

September 9, 2010
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I requested an academic copy of the Revolution R Enterprise today. Since they only have Windows or Redhat version, I installed it on an old spare machine dual-booting Linux and Windows. I like what they did with the IDE (the debugger is nice) and ...

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Revolution R Enterprise, some thoughts

September 9, 2010
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I requested an academic copy of the Revolution R Enterprise today. Since they only have Windows or Redhat version, I installed it on an old spare machine dual-booting Linux and Windows. I like what they did with the IDE (the debugger is nice) and ...

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Off to Banff!!

September 9, 2010
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Off to Banff!!

Today I am travelling from Paris to Banff, via Amsterdam and Calgary, to take part in the Hierarchical Bayesian Methods in Ecology two day workshop organised at BIRS by Devin Goodsman (University of Alberta),  François Teste (University of Alberta), and myself. I am very excited both by the opportunity to meet young researchers in ecology

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What can other languages learn from R?

September 9, 2010
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What can other languages learn from R?

At the ASA Statistical Computing Award ceremony in Vancouver last month, R's co-creator Ross Ihaka said that R began as a "system that was functional and well-designed, and made it easy and fun for other people to help". R's other co-creator, Robert Gentleman, also described the ability of others to contribute as "the exit strategy" that made R so...

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A quick ggplot2 hack (multiple dataframes)

September 9, 2010
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A quick ggplot2 hack (multiple dataframes)

I’m starting to get familiar with ggplot2, and I really like it. I just found a very quick way to use several dataframes within the same plot, provided that the dataframes share columns names. One obvious application is the production (…)Read the rest of this entry »

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NHANES Data: Management with R

September 9, 2010
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David Winsemius discusses the analysis of the NHANES data set to create models that better predict Hepatitis C infection.

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Harvesting & Analyzing Interaction Data in R: The Case of MyLyn

September 9, 2010
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Sean Goggins presents a network analysis of MyLyn software development project.

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Typo in Chapter 5

September 9, 2010
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Typo in Chapter 5

Gilles Guillot from Technical University of Denmark taught a course based on our R book and he pointed out to me several typos in Chapter 5 of “Introducing Monte Carlo Methods with R”: p.137 second equation from bottom should be p. 138  Example 5.7 denominator in the gradient should be

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